Home / 1,319,439.40-1,978,007.10-897,346.60

Finding the Fourth Proportional to 1,319,439.40, 1,978,007.10 and 897,346.60

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Solution

The fourth proportional to 1,319,439.40, 1,978,007.10 and 897,346.60 is: 1,345,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,439.40 : 1,978,007.10 = 897,346.60 : x
  2. Step 2: Convert to fraction form
    1,319,439.40/1,978,007.10 = 897,346.60/x
  3. Step 3: Cross multiply
    1,319,439.40x = 1,978,007.10 × 897,346.60
  4. Step 4: Simplify right side
    1,319,439.40x = 1,774,957,945,960.86
  5. Step 5: Solve for x
    x = 1,774,957,945,960.86/1,319,439.40
  6. Step 6: Final answer
    x = 1,345,236.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.